| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual Monthly |
|
| Mean Max. Temperature (F) | 36.5 | 41.5 | 49.3 | 57.9 | 66.9 | 77.5 | 87.4 | 86.6 | 76.5 | 63.4 | 46.6 | 37.6 | 60.6 |
| Highest Mean Max. Temperature (F) | 43.3 | 49.7 | 57.5 | 68.0 | 76.7 | 83.7 | 92.4 | 90.2 | 84.2 | 73.9 | 57.8 | 46.0 | 92.4 |
| Year Highest Occurred | 1994 | 1977 | 1986 | 1987 | 1992 | 1988 | 1989 | 1981 | 1990 | 1988 | 1976 | 1980 | 1989 |
| Lowest Mean Max. Temperature (F) | 29.6 | 31.5 | 43.6 | 47.8 | 60.9 | 70.6 | 78.6 | 81.9 | 68.4 | 54.6 | 35.9 | 28.2 | 28.2 |
| Year Lowest Occurred | 1984 | 1984 | 1984 | 1975 | 1977 | 1998 | 1993 | 1993 | 1986 | 1984 | 1994 | 1990 | 1990 |
| Mean Temperature (F) | 22.7 | 27.8 | 36.2 | 42.9 | 51.4 | 60.1 | 68.1 | 66.6 | 57.1 | 45.5 | 32.7 | 24.0 | 44.6 |
| Highest Mean Temperature (F) | 30.6 | 35.6 | 42.6 | 48.9 | 58.1 | 65.4 | 71.6 | 70.3 | 65.0 | 53.2 | 39.1 | 30.8 | 71.6 |
| Year Highest Occurred | 1994 | 1995 | 1986 | 1987 | 1992 | 1977 | 1989 | 1994 | 1990 | 1988 | 1995 | 1980 | 1989 |
| Lowest Mean Temperature (F) | 15.2 | 16.7 | 31.0 | 35.6 | 47.1 | 55.8 | 60.5 | 62.3 | 51.8 | 39.9 | 24.9 | 14.4 | 14.4 |
| Year Lowest Occurred | 1984 | 1984 | 1985 | 1975 | 1977 | 1998 | 1993 | 1976 | 1971 | 1984 | 1994 | 1990 | 1990 |
| Mean Min. Temperature (F) | 8.9 | 14.1 | 23.0 | 27.9 | 35.8 | 42.7 | 48.7 | 46.6 | 37.7 | 27.6 | 18.7 | 10.3 | 28.5 |
| Highest Mean Min. Temperature (F) | 17.9 | 22.8 | 27.6 | 32.5 | 40.5 | 47.9 | 51.8 | 51.3 | 45.8 | 32.4 | 23.8 | 17.7 | 51.8 |
| Year Highest Occurred | 1994 | 1992 | 1986 | 1990 | 1994 | 1977 | 1998 | 2000 | 1990 | 1988 | 1995 | 1995 | 1998 |
| Lowest Mean Min. Temperature (F) | 0.4 | 2.0 | 16.0 | 23.4 | 31.8 | 38.1 | 42.3 | 41.6 | 31.0 | 23.1 | 11.1 | 0.5 | 0.4 |
| Year Lowest Occurred | 1979 | 1984 | 1977 | 1975 | 1975 | 1975 | 1993 | 1974 | 1971 | 1976 | 1993 | 1990 | 1979 |
| Mean Precipitation (in.) | 1.00 | 0.87 | 0.92 | 1.01 | 1.54 | 1.00 | 0.92 | 0.67 | 0.79 | 0.90 | 0.98 | 0.98 | 11.58 |
| Highest Precipitation (in.) | 1.87 | 2.49 | 2.42 | 2.86 | 4.25 | 2.46 | 3.80 | 2.00 | 3.73 | 4.32 | 1.96 | 3.51 | 4.32 |
| Year Highest Occurred | 1979 | 1986 | 1995 | 1991 | 1995 | 1983 | 1984 | 1993 | 1982 | 1972 | 1973 | 1983 | 1972 |
| Lowest Precipitation (in.) | 0.15 | 0.07 | 0.16 | 0.10 | 0.02 | 0.06 | 0.04 | 0.00 | 0.00 | 0.00 | 0.05 | 0.00 | 0.00 |
| Year Lowest Occurred | 1992 | 1991 | 1994 | 1979 | 1972 | 1974 | 1992 | 1985 | 1987 | 1988 | 1974 | 1986 | 1985 |
| Heating Degree Days (F) | 1311. | 1041. | 894. | 663. | 424. | 183. | 48. | 55. | 254. | 605. | 972. | 1273. | 7723. |
| Cooling Degree Days (F) | 0. | 0. | 0. | 0. | 1. | 35. | 141. | 105. | 18. | 0. | 0. | 0. | 300. |